Best time to fly Santa Ana to Oakland

Every month pooled across the years on record, so "July" means July generally rather than one particular July. Full SNA to OAK record →

Best month

September

91.1% on time · 193 flights

Worst month

June

71.4% on time · 204 flights

Month Flights On time Cancelled When late, by
January 165 90.9% 0.61% 57 min
February 172 87.2% 0% 44 min
March 207 89.2% 1.45% 52 min
April 194 86% 0.52% 38 min
May 201 85.1% 0% 41 min
June 204 71.4% 0.49% 55 min
July 219 78.1% 1.83% 48 min
August 206 85.3% 0.97% 63 min
September 193 91.1% 0.52% 46 min
October 197 83.8% 0% 46 min
November 198 84.5% 2.02% 53 min
December 197 83.1% 1.02% 46 min

What a seasonal pattern can and cannot tell you

Months differ for reasons that repeat — summer thunderstorms in the American interior, winter fog and de-icing in northern Europe, school holidays filling every seat and leaving no slack in the schedule. Those are real and they come back each year.

What the pattern cannot do is forecast a particular flight. A quiet month has late days and a bad month has punctual ones. Treat this as a way to choose between two dates you are indifferent about, not as a promise.